PIC24FJ256GB108-I Datasheet, PDF(231/352 Page) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

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PIC24FJ256GB108-I Datasheet, PDF (231/352 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

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PIC24FJ256GB110 FAMILY

18.7.2 USB INTERRUPT REGISTERS

REGISTER 18-14: U1OTGIR: USB OTG INTERRUPT STATUS REGISTER (HOST MODE ONLY)

U-0

U-0

U-0

U-0

U-0

U-0

U-0

U-0

â

â

â

â

â

â

â

â

bit 15

bit 8

R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS

U-0

R/K-0, HS

IDIF

T1MSECIF LSTATEIF

ACTVIF

SESVDIF SESENDIF

â

VBUSVDIF

bit 7

bit 0

Legend:

R = Readable bit

-n = Value at POR

U = Unimplemented bit, read as â0â

K = Write â1â to clear bit

HS = Hardware Settable bit

â1â = Bit is set

â0â = Bit is cleared

x = Bit is unknown

bit 15-8

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

Unimplemented: Read as â0â

IDIF: ID State Change Indicator bit

1 = Change in ID state detected

0 = No ID state change

T1MSECIF: 1 Millisecond Timer bit

1 = The 1 millisecond timer has expired

0 = The 1 millisecond timer has not expired

LSTATEIF: Line State Stable Indicator bit

1 = USB line state (as defined by the SE0 and JSTATE bits) has been stable for 1 ms, but different from

last time

0 = USB line state has not been stable for 1 ms

ACTVIF: Bus Activity Indicator bit

1 = Activity on the D+/D- lines or VBUS detected

0 = No activity on the D+/D- lines or VBUS detected

SESVDIF: Session Valid Change Indicator bit

1 = VBUS has crossed VA_SESS_END (as defined in the USB OTG Specification)(1)

0 = VBUS has not crossed VA_SESS_END

SESENDIF: B-Device VBUS Change Indicator bit

1 = VBUS change on B-device detected; VBUS has crossed VB_SESS_END (as defined in the USB OTG

Specification)(1)

0 = VBUS has not crossed VA_SESS_END

Unimplemented: Read as â0â

VBUSVDIF A-Device VBUS Change Indicator bit

1 = VBUS change on A-device detected; VBUS has crossed VA_VBUS_VLD (as defined in the USB OTG

Specification)(1)

0 = No VBUS change on A-device detected

Note 1: VBUS threshold crossings may be either rising or falling.

Note:

Individual bits can only be cleared by writing a â1â to the bit position as part of a word write operation on the

entire register. Using Boolean instructions or bitwise operations to write to a single bit position will cause

all set bits at the moment of the write to become cleared.

ï£ 2009 Microchip Technology Inc.

DS39897C-page 231

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